Details

• Brand:

  

• SKU:

  4593839AB

• Other Names:

  Intake Manifold Plenum, Secondary Runner Valve Actuator Kit, 04593839ab, Intake Short Running Valve

• Description:

  Intake Short Running Valve Actuator (4593839AB) 

  The Intake Short Running Valve Actuator (part number 4593839AB) is a genuine OEM component manufactured by Mopar for use in various Chrysler Group vehicles equipped with variable intake manifold systems. Also known as the Intake Manifold Runner Control (IMRC) actuator, this device electronically controls the length of the intake runners in the engine’s intake manifold to optimize performance across different engine speeds.

  By adjusting the airflow path within the intake manifold based on RPM, the actuator enhances both low-end torque and high-RPM power delivery, significantly improving engine efficiency and responsiveness. This report consolidates verified technical data, vehicle fitment, performance attributes, and cross-reference information for the 4593839AB actuator.

  Technical Specifications

  Part Identification

  • Part Number: 4593839AB
  • OEM Manufacturer: Mopar
  • Alternative Names: Intake Manifold Runner Control Actuator, IMRC Actuator, Secondary Runner Valve Actuator

  Physical and Functional Characteristics

  • Type: Electronic actuator
  • Application Engine: 3.5L V6 High Output 24V MPI 
  • Material Construction: Engineered thermoplastic housing with internal metal gear mechanism (inferred from design norms of similar OEM actuators)
  • Dimensions: 7.0 x 4.1 x 4.2 inches 
  • Weight: 2.00 pounds 
  • Connector Type: Electrical connector designed for integration with the Engine Control Module (ECM)
  • Condition: Brand new, unused, and factory packaged 
  • Fitment Type: Direct replacement, ensuring plug-and-play compatibility

  The actuator operates under ECM command, modulating a series of flaps or valves inside the intake manifold plenum to switch between long and short intake runner configurations. This variably tuned intake system helps maintain optimal volumetric efficiency across the engine’s operating range.

  Vehicle Fitment

  The 4593839AB actuator is compatible with specific models across the Chrysler, Dodge, and related vehicle lines equipped with the 3.5L V6 engine:

  Dodge

  • Dodge Charger: 2007–2010 (SE, SXT, Pursuit trims) – 3.5L V6 
  • Dodge Challenger: 2010 (SE trim) – 3.5L V6 
  • Dodge Magnum: 2007–2008 – 3.5L V6 

  Chrysler

  • Chrysler 300: 2008–2010 (Limited, S, Touring trims) – 3.5L V6 

  These fitment details are consistent across multiple parts suppliers and confirm the actuator's specific application window. While some listings also reference compatibility with 2.7L V6 engines 1, detailed OEM sources and service documentation align the 4593839AB primarily with the 3.5L High Output V6 configuration.

  Performance Features

  1. Optimized Airflow and Engine Breathing: Dynamically adjusts intake runner length to enhance air velocity at low RPM and airflow volume at high RPM, improving engine volumetric efficiency across the operating range.

  2. Enhanced Torque and Power Delivery: Increases low-end torque by utilizing longer runner paths and high-RPM power by engaging shorter runner paths, resulting in a broader and more usable power band.

  3. Precise Electronic Control: Fully synchronized with the engine’s ECM, enabling accurate and responsive modulation of runner flaps in real time based on operating conditions.

  4. Improved Fuel Efficiency and Throttle Response: Optimizing intake airflow reduces pumping losses and improves combustion efficiency, contributing to better fuel economy and sharper throttle response.

  5. Smooth Transition and Reliable Operation: Engineered for seamless transitions between runner modes, reducing vibrations and hesitation during driving, ensuring a refined driving experience.

  Quality and OEM Advantage

  As a genuine Mopar OEM part, the 4593839AB actuator meets strict original equipment manufacturing standards, ensuring correct material quality, calibration, and durability. OEM components like this are validated through rigorous testing protocols to match factory performance and longevity, providing superior reliability compared to many aftermarket alternatives.

  The use of engineered thermoplastics and precision-molded internal gears enhances resistance to heat, vibration, and wear — common failure points in lesser-quality replacement actuators. Additionally, OEM calibration and exact fitment minimize compatibility issues and reduce the risk of check engine lights or performance faults after installation.

  Installation Recommendations

  • Professional Installation: Highly recommended to ensure proper mounting, wiring, and functionality.
  • ECM Relearn/Calibration: After replacement, a calibration or relearn procedure via a scan tool may be required to ensure the ECM correctly recognizes and operates the new actuator.
  • Inspection of Related Components: Check vacuum lines, electrical connectors, intake manifold flaps, and linkage arms for wear or binding during installation.
  • Post-Installation Testing: Operate the engine through various RPM ranges and use diagnostic equipment to verify actuator movement and absence of fault codes such as P2004 or P2008, which relate to IMRC system malfunctions.

  Cross-Reference Information

  The following part numbers are equivalent or commonly used replacements for the 4593839AB actuator:

  • Mopar: 4593839AB, 4593839AA, 68166449AA 

  Intake Short Running Valve Actuator

• Condition: New

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